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H. BERRY.

BRUSH,

110, 81,206. Patented Apr. 17,-"1'888 j N. PETERS. PhnIo-Ulhographqr,Walhinglmv. D.C.

.VIS

UNITED T S PATENT v I HENRY BERRY, OF sHEL'roiv, CONNECTICUT, AssIeNoETdTHE DERBY SILVER COMPANY, OF SAME rLhoE.

BRUSH.

SPECIFICATION forming part of Letters Patent No; 381,206, dated April17,1888. 1

Application filed August 25, 1887. Serial No. 247.800. (No model.)

To all whom it may concern Be it known that I, HENRY BERRY, a citizen ofthe United States, residing at Shelton, in the county of Fairlield andState of Connecticut, have invented certain new anduseful Improvementsin Brushes; and I do hereby declare the following to be a full, clear,and exact descriptionof the invention, such as will enable othersskilled in the art to whichitappertains to make and use the same.

My in vention relates to certain new and useful improvements in brushes;but more particularly does it appertain to that class of brushes-whereinthe brushland the wooden and with these ends in view my inventionconsists in the means hereinafter to be described for firmly securingthe brush properinto the metal back, which will be "hereinafter morefull described, and then'recited in the claims.

In order'that those skilled, in the art to which my invention appertainsmay th0roughly understand my invention and how to make the same Iwilldescribe the same in detail, reference being had to the accompanyingdrawings,which form a part of this specification, and in which so FigureIsis a plan of the inner side of the metal backing prior to the securingof the,

brush therein, and Fig. 2 a central vertical transverse section of thebrush and backing.

- 'fit over the wooden brush-back.

Similarfigures indicate like partsin both the views."

1 is the wooden brush back,wherein thebristles are secured inanyordinary manner. At or near its center the wooden brush-back has madetherein an undercut recess, 2, which is 5 is a key, which is preferablyconcavo-con- 'vex in cross section, and which is secured, as: 5

by soldering, to the inner surfaceof the metal backing. I The said keyis of suchsize as'to be I justcapable of entrance into the undercut re-I cess aforesaid. 4 7 V By means of my device the brush andback- '50 ingare secured together as follows: The undercut recess in the brush-backis first filled with some strong adhesivecement. ing isthen placed, overthe brush-back, and

the key thereby causedto embed in the cement within the recess. As thecement hardeus,

the key is firmly retained therein; The sec- I tion, Fig. 2, shows theassembledpositio'n of T the parts, the cement being indicated by Fig. v6; Asan additional means of security, thean- 6onular flange of themetal'backing' is spun nor turned over the edge of the brush-back In Ithis way a brush of greatsolidity and strength is assured. Q I e AIclaim-r- 1.7 The combinationwith the metallic backing,of a key securedtothe inner face thereof,

a brush having 'a recessin its back within which theikey is adapted tofit, and astratum I of cement arranged withinthe recess and sur- 7orounding the key, substantially as set forth. 2: The combination, withthe brush having an undercut recess in the back thereof, of a metalbacking provided interiorly' witha key andanntilarlywith. aprojectingflange, said backing being, adapted to be secured to thebrush-back by the embedding of thek'eyinthe cement withinthe undercutrecess, and also by the turning of the annularflange to embracethepbrush-back at its edges, substantially as 8o setfortht p a Intestimony whereof Iaffix my signature in 5' presence of two witnesses.

w itnesses'z S. H. HUBBARD, I W. J. MILLER.

Theback- HENRY BERRY. 1 g i

